One type of antagonist is a mad scientist - type character who wants to experiment on Goku and Fasha to understand their Saiyan powers. This character might create all sorts of dangerous monsters to try and capture them. Another could be a powerful demon from another dimension who is drawn to their power and wants to consume it to become even more powerful.
Well, obviously Goku and Fasha are the main characters. Goku is known for his incredible strength and kind heart. Fasha, on the other hand, is also a Saiyan with her own unique personality and abilities. In the fanfiction, they are often the focus, whether they are going on adventures, falling in love, or training together.
It's hard to say. Goku has achieved many powerful forms like Super Saiyan Blue and Ultra Instinct. But Fasha was a strong Saiyan in her own right. If Fasha has been training hard in the fanfiction, she could give Goku a tough fight. However, Goku's experience in battles against strong foes like Fasha could also be a determining factor.
Often, it could be new villains created specifically for the fanfiction. Maybe a powerful android created by the same scientist who made Android 21 but with a more evil intent.
It could be some of the more powerful villains from both universes combined. Maybe Frieza and Orochimaru team up. Frieza's lust for power and Orochimaru's desire for immortality and knowledge would make them a formidable pair. They would target Naruto because of his potential and Goku because of his strength, aiming to either destroy them or use them for their own evil purposes.
One possible main antagonist could be Frieza. Imagine if Frieza somehow found his way into the Naruto universe. He would be attracted to the chaos and power struggles there. Goku and Naruto would have to team up to stop him from taking over the Naruto world. Frieza's cold - blooded nature and his desire for power would put him at odds with our heroes. His powerful abilities would be a huge threat to both Naruto and Goku, especially since Naruto is still learning about the new powers Goku is teaching him.
Often, it could be some sort of super - powered being from a different dimension. Maybe a powerful wizard who wants to take over both their universes.
One possibility in the 'Goku meets Fasha' fanfiction is that they go on an adventure together. They could explore an uncharted planet in search of the legendary Super Saiyan God. Along the way, they face various challenges like powerful alien creatures and dangerous terrains. Goku's pure - heartedness and Fasha's warrior spirit would complement each other, and they'd learn a great deal from their journey.
One popular theme is their adventures together. They might go on a quest to find a powerful artifact. Another theme could be their relationship development, like how they become friends or even more than friends. Also, there are often themes of them training together and getting stronger to face a common enemy.
In this fanfiction, Fasha is likely a character created specifically for the story. She's Naruto's mother in this particular version of the Naruto universe. But without reading the fanfiction in detail, it's hard to say more about her. She could be a powerful ninja, or maybe she has some kind of special connection to the main Naruto storyline.
In some fanfictions, Goku and Fasha could be in a relationship and face the difficulties of being from different Saiyan backgrounds. For example, their different upbringings might cause some friction at first, but they learn to understand and support each other in the end.